---
id: CVE-2025-66862
title: >-
  A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in
  BinUtils 2.26 allows attackers to cause a denial of service via crafted PE
  file.
summary: >-
  A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in
  BinUtils 2.26 allows attackers to cause a denial of service via crafted PE
  file.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-122
vendor: gnu
product: binutils
affected:
  - binutils = 2.26
published: '2025-12-29'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T12:10:00.170'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66862'
references:
  - url: 'https://github.com/caozhzh/CRGF-Vul/blob/main/cxxfilt/crash3.md'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.0037
epssPercentile: 0.28786
ingestedAt: '2026-10-07T12:29:01.336Z'
---

## Overview

A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils 2.26 allows attackers to cause a denial of service via crafted PE file.

## Affected

- `binutils = 2.26`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.